There’s one that’s hard to guess, but easy to test if you have a small pool or even a kitchen sink (from Aha! by Martin Gardner).
In a pool there’s a boat with heavy gold in it. You throw the gold at the bottom of the pool. Of course, the boat rises, but what about the level of the water in the pool?
There’s one that’s hard to guess, but easy to test if you have a small pool or even a kitchen sink (from Aha! by Martin Gardner).
In a pool there’s a boat with heavy gold in it. You throw the gold at the bottom of the pool. Of course, the boat rises, but what about the level of the water in the pool?